November 2017
Intermediate to advanced
328 pages
6h 51m
Japanese
Content preview from 入門 PySpark ―PythonとJupyterで活用するSpark 2エコシステム
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11
章
Spark
アプリケーションのパッケージ化
217
11
章
Spark
アプリケーションのパッケージ化
ここまでは、Sparkでコードを書く上でとても便利な方法を使ってきました。すなわちJupyter
notebookです。このアプローチは概念検証を行い、その過程でドキュメントを残す方法としては素晴ら
しいものです。
し か し 、ジ ョ ブ を 1時間ごとに実行するためにスケジューリングしなければならないような場合には、
Jupyter notebook ではうまくいきません。また、アプリケーションをパッケージ化したり、スクリプトを
論理的な単位に分割し、十分に定義された APIを持たせたりするようなことは非常に難しくなります。
これはすべてが 1 つのノートブックに収められてしまっている以上、仕方がないことです。
本章では、スクリプトを再利用できるモジュールの形式で作成し、Sparkにジョブをプログラムから
投入する方法を学びます。
た だ し 始 め る 前 に 、「 付 録 B 無料で利用できるクラウド上の Spark」を参照しておいてください。こ
の付録では、Databricks のCommunity Edition や MicrosoftのHDInsight が提供しているSpark の環
境について、そのサブスクライブと利用の方法を紹介しています。
本章で学ぶことは次のとおりです。
●
spark-submit
コマンド
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アプリケーションのパッケージ化とプログラムからのデプロイ
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.